The economic success of a potential biorefinery is directly related to the use of economic feasible biomass. Due to high cost, it is unlikely that a wood-based biorefinery would use only whitewood material from conventional ...

The presence of SO<sub>2</sub> in steam pretreatment creates a series of problems in environmental protection, equipment corrosion, chemical catalysis and waste water treatment. Moreover, SO<sub>2</sub> increases the ...